This week we’re talking about robotic eels tracking water pollution, building DNA from scratch👨‍🔬, the first floating wind farm💨, and the first solar-powered train ☀️🚆. ENVIRONMENT . Robotic eels vs water pollution We have certainly measured water pollution...

This week we’re talking about electric bike-sharing programs 🚲⚡, a new phone that doesn’t need a battery 😒, cryptocurrency using more energy than small nations, and an AR device that screws in like a light bulb. Now let’s get lit… 💡...